Khani, Yousef, Nima Pourgholam-Amiji, Mohammad Afshar, Omid Otroshi, Mehran Sharifi-Esfahani, Hamidreza Sadeghi-Gandomani, Marjan Vejdani, and Hamid Salehiniya. “Tobacco Smoking and Cancer Types: A Review”. Biomedical Research and Therapy 5, no. 4 (April 16, 2018): 2142-2159. Accessed November 25, 2020. http://www.bmrat.org/index.php/BMRAT/article/view/428.